Table 3.

The subgroup analysis of lipid metabolism.

Index	Variable	Group	Sample size	Homogeneity test			Effect size and 95% CI	Two-tailed test
				C2	P	I2		Z	P
TC	Frequency	≥5/W	248	0.24	0.62	0%	−0.19 (−0.45, 0.07)	1.47	0.14
		<5/W	347	16.88	0.00	82%	−0.63 (−1.06, −0.19)	2.22	0.00
	Time	≥60 min/d	113	0.44	0.51	0%	−0.23 (−0.60, 0.14)	1.23	0.22
		<60 min/d	482	19.72	0.00	85%	−0.59 (−1.01, −0.17)	2.76	0.00
TG	Frequency	≥5/W	248	13.21	0.00	92%	−0.35 (−0.71, 0.02)	1.87	0.06
		<5/W	347	55.79	0.00	95%	−1.00 (−1.79, −0.21)	2.48	0.01
	Time	≥60 min/d	113	1.98	0.16	49%	−0.23 (−0.60, 0.14)	4.45	0.00
		<60 min/d	482	56.66	0.00	95%	−0.86 (−1.37, −0.35)	3.28	0.00
LDL-C	Frequency	≥5/W	248	2.51	0.11	60%	−0.63 (−0.89, −0.38)	4.89	0.00
		<5/W	347	59.88	0.00	95%	−0.62 (−1.05, −0.19)	2.82	0.00
	Time	≥60 min/d	113	8.51	0.00	88%	−0.50 (−1.03, 0.04)	1.81	0.07
		<60 min/d	482	51.18	0.00	94%	−0.68 (−1.06, −0.31)	4.57	0.00
HDL-C	Frequency	≥5/W	248	0.02	0.89	0%	0.17 (0.09, 0.24)	4.47	0.00
		<5/W	347	2,858.42	0.00	100%	−1.13 (−3.25, 0.99)	1.04	0.30
	Time	≥60 min/d	113	4.39	0.04	77%	0.08 (−0.09, 0.24)	0.89	0.37
		<60 min/d	482	2,979.81	0.00	100%	−1.08 (−3.11, −0.94)	1.05	0.30